Underwater fiber-wireless communication with a passive front end
Underwater fiber-wireless communication with a passive front end
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带无源前端的水下光纤无线通信
DOI：
10.1016/j.optcom.2017.05.077
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发表时间：
2017
影响因子：
2.4
通讯作者：
Deng Ning
中科院分区：
文献类型：
--
作者：
Xu Jing;Sun Bin;Lyu Weichao;Kong Meiwei;Sarwar Rohail;Han Jun;Zhang Wei;Deng Ning
我们提出并实验证明了一种新的概念，水下光纤无线（Fi-Wi）通信系统与一个完全无源的无线前端。一个低成本的阶跃折射率（SI）塑料光纤（POF）与无源准直透镜在前端组成的水下Fi-Wi架构。在50 m SI-POF和2 m水下无线信道上，采用正交频分复用（OFDM）技术，实现了1.71 Gb/s的传输，平均误码率为4.97× 10− 3（功率加载时为1.30× 10− 3）。虽然无线部分很短，但它实际上在实际的水下实施中起着至关重要的作用，特别是在深海中。与有线解决方案（例如，使用52米的POF电缆，没有UWOC部分）相比，所提出的水下Fi-Wi方案可以节省光学湿配合连接器，这些连接器复杂，非常昂贵，难以安装在深海中。通过将高容量、鲁棒性的塑料光纤与水下无线光通信（UWOC）的移动性和无处不在性相结合，所提出的水下Fi-Wi技术将在海洋勘探中得到广泛的应用。
We propose and experimentally demonstrate a novel concept on underwater fiber–wireless (Fi–Wi) communication system with a fully passive wireless front end. A low-cost step-index (SI) plastic optical fiber (POF) together with a passive collimating lens at the front end composes the underwater Fi–Wi architecture. We have achieved a 1.71-Gb/s transmission at a mean BER of 4.97× 10− 3 (1.30× 10− 3 when using power loading) over a 50-m SI-POF and 2-m underwater wireless channel using orthogonal frequency division multiplexing (OFDM). Although the wireless part is very short, it actually plays a crucial role in practical underwater implementation, especially in deep sea. Compared with the wired solution (eg using a 52-m POF cable without the UWOC part), the proposed underwater Fi–Wi scheme can save optical wet-mate connectors that are sophisticated, very expensive and difficult to install in deep ocean. By combining high-capacity robust POF with the mobility and ubiquity of underwater wireless optical communication (UWOC), the proposed underwater Fi–Wi technology will find wide application in ocean exploration.